Which statement best reflects preventing secondary brain injury in a casualty with a traumatic brain injury?

Which statement best reflects preventing secondary brain injury in a casualty with a traumatic brain injury?

• A. Maintain Adequate Oxygenation
• B. Keep blood pressure low
• C. Limit movement completely
• D. Complete bed rest

Answer: (A)

Preventing secondary brain injury centers on preserving adequate oxygen delivery to brain tissue. After a traumatic brain injury, the brain is highly sensitive to hypoxia; when oxygen is scarce, cells switch to less efficient anaerobic metabolism, leading to energy failure, acidosis, swelling, and further neuronal damage. By maintaining adequate oxygenation through airway management, ventilation support, and supplemental oxygen to keep oxygen saturation in a safe range, you support aerobic metabolism, reduce the risk of ischemia, and help protect brain tissue from additional injury. Keeping blood pressure low would lower cerebral perfusion pressure and worsen injury risk, so that approach isn’t protective. Limiting movement or complete bed rest doesn’t directly address the critical need to optimize oxygen delivery.

Preventing secondary brain injury centers on preserving adequate oxygen delivery to brain tissue. After a traumatic brain injury, the brain is highly sensitive to hypoxia; when oxygen is scarce, cells switch to less efficient anaerobic metabolism, leading to energy failure, acidosis, swelling, and further neuronal damage. By maintaining adequate oxygenation through airway management, ventilation support, and supplemental oxygen to keep oxygen saturation in a safe range, you support aerobic metabolism, reduce the risk of ischemia, and help protect brain tissue from additional injury. Keeping blood pressure low would lower cerebral perfusion pressure and worsen injury risk, so that approach isn’t protective. Limiting movement or complete bed rest doesn’t directly address the critical need to optimize oxygen delivery.